Meanings

the Young Turks

dark blue

Prussian blue

deep distress

Aucuba japonica var. borealis (variety of Japanese laurel)

fenqing

greengrocer

(written) history

Epipactis papillosa (species of orchid)

red-root amaranth (Amaranthus retroflexus)

working youth

blue line

area around a red-light district where illegal prostitution occurred (marked on police maps by a blue line; 1940s-1956)

area around a red-light district where illegal prostitution occurred (marked on police maps by a blue line; 1940s-1956)

blue letter style

Mohammedan blue (pigment used in porcelain painting)

methylene blue

great morinda (Morinda citrifolia)

Blue Sky with a White Sun

Blue Sky, White Sun, and a Wholly Red Earth (flag of the Republic of China)